package containers;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;

public class CollectionMethods {

    public static void main(String[] arg){
        Collection<String> c = new ArrayList<String>();
        ((ArrayList<String>) c).add("ten");
        ((ArrayList<String>) c).add("eleven");
        System.out.println(c);
    }
}
